Lightning protection systems and methods

ABSTRACT

A portable lightning protection system including a multi-section conductive mast assembly including at least a base mast section and a top mast section; an air terminal attachable to the top mast section; and a base assembly attachable to the base mast section via a hinge assembly, wherein the hinge assembly may be configured to allow the base mast section to hinge relative to the base assembly. A catenary lightning protection system including at least two lightning protection systems, each lightning protection system may include a multi-section conductive mast assembly including at least a base mast section and a top mast section; an air terminal attachable to the top mast section; a base assembly attachable to the base mast section; and may further include a catenary wire connected between the at least two lightning protection systems.

RELATED APPLICATIONS

This application is related to and claims priority to U.S. ProvisionalPatent Application Nos.: 62/297,361, entitled “Modular LightningProtection System and Method of Deploying Same,” filed on Feb. 19, 2016;and 62/297,533, entitled “Lightning Protection System with Catenary andMethod of Deploying Same,” filed on Feb. 19, 2016; the entiredisclosures of which are incorporated herein by reference.

TECHNICAL FIELD

The presently disclosed subject matter relates generally to systems andmethods for providing lightning protection, and more particularly toportable lightning protection systems and methods of deploying same.

BACKGROUND

Lightning terminals or “lightning rods” are commonly attached tonumerous structures such as buildings, cell towers, drilling rigs, andtanks. Generally, these terminals are attached to the highest part ofthe structure and grounded. Lightning will strike the terminal insteadof the structure and follows the least path of resistance to the ground.However, many portable and high value assets are not protected fromlightning strikes. Such assets include, for example, portable buildings,airfields, aircraft, ground vehicles, pumping stations, fuel depots,emergency and military command posts, solar cell installations,satellite dish installations, environmental monitoring facilities, etc.Thus, there is a need for a lightning protection system that can bequickly and easily installed adjacent to such assets to provideprotection from lightning strikes.

SUMMARY

In one embodiment, the disclosed subject matter provides a lightningprotection system. The lightning protection system may include amulti-section conductive mast assembly including at least a base mastsection and a top mast section; an air terminal attachable to the topmast section; and a base assembly attachable to the base mast sectionvia a hinge assembly, wherein the hinge assembly is configured to allowthe base mast section to hinge relative to the base assembly. The baseassembly may include a plurality of radially extending inner horizontalbeams having inner ends attachable to the hinge assembly and a pluralityof inclined beams having inner ends attachable to the base mast sectionand outer ends attachable to the radially extending horizontal beams.The base assembly may further include a plurality of outer horizontalbeams attachable to outer ends of the radially extending innerhorizontal beams. The lightning protection system may further include atleast one grounding cable to ground the multi-section conductive mastassembly. The system may further include at least one ground rod toground the at least one grounding cable to earth. The hinge assembly mayinclude a top horizontal plate and a bottom horizontal plate hingedlyconnected on at least one side thereof. The top horizontal plate andbottom horizontal plate may be hingedly connected on two opposing sidesthereof. The base mast section may include a plurality of radiallyextending, axially aligned ribs. The inner ends of the plurality ofinclined beams may be attachable to the base mast section ribs. A tophorizontal plate of the hinge assembly may include an upper surface andattachment plates extending upward from the top horizontal plate uppersurface for attachment to the base mast section ribs. The system mayfurther include at least one intermediate mast section disposed betweenthe base mast section and the top mast section. The top horizontal plateand bottom horizontal plate may be secured together in a non-hingedstate via one or more cam lever fasteners, wherein one of the tophorizontal plate and bottom horizontal plate comprises a captive camlever fastener and the other of the top horizontal plate and bottomhorizontal plate comprises a corresponding slot for the cam leverfastener to engage. Sections of the multi-section conductive mast may bejoined by a threaded coupling. The inner ends of the plurality ofradially extending inner horizontal beams may be attachable to the hingeassembly via insertion into corresponding slots thereon and may besecured in place via a quick connect/disconnect mechanism, and whereinthe inner ends of the plurality of inclined beams may be attachable tothe base mast section and the outer horizontal beams may be attachableto outer ends of the radially extending inner horizontal beams via quickconnect/disconnect mechanisms. The quick connect/disconnect mechanismfor securing the inner ends of the plurality of radially extendinghorizontal beams within the corresponding slots of the hinge assemblymay include a removable pin, and wherein the quick connect/disconnectmechanism for attaching the inner ends of the plurality of inclinedbeams to the base mast section and for attaching the outer horizontalbeams to outer ends of the radially extending inner horizontal beams mayinclude a cam lever fastener.

In another embodiment, the disclosed subject matter provides a method ofdeploying a lightning protection system. The method may includeproviding a lightning protection system, wherein the lightningprotection system may include a multi-section conductive mast assemblyincluding at least a base mast section and a top mast section; an airterminal attachable to the top mast section; and a base assemblyattachable to the base mast section via a hinge assembly, wherein thehinge assembly is configured to allow the base mast section to hingerelative to the base assembly. The method may further include assemblingthe base assembly and multi-section conductive mast assembly; connectingthe base mast section to the base assembly via the hinge assembly;positioning the base assembly to a desired location and securing inposition; grounding the lightning protection system; and placing andsecuring the multi-section conductive mast assembly in an uprightposition using the hinge assembly.

In yet another embodiment, the disclosed subject matter provides acatenary lightning protection system. The system may include at leasttwo lightning protection systems, each lightning protection system mayinclude: a multi-section conductive mast assembly comprising at least abase mast section and a top mast section; an air terminal attachable tothe top mast section; and a base assembly attachable to the base mastsection. The system may further include a catenary wire connectedbetween the at least two lightning protection systems. In one or more ofthe at least two lightning protection systems the base assembly may beattachable to the base mast section via a hinge assembly, wherein thehinge assembly may be configured to allow the base mast section to hingerelative to the base assembly.

In still yet another embodiment, the disclosed subject matter provides amethod of deploying a catenary lightning protection system. The methodmay include providing at least two lightning protection systems, eachlightning protection system may include a multi-section conductive mastassembly comprising at least a base mast section and a top mast section;an air terminal attachable to the top mast section; a base assemblyattachable to the base mast section; and a catenary wire connectedbetween the at least two lightning protection systems. The method mayfurther include assembling the at least two lightning protectionsystems; positioning the at least two lightning protection systems acertain distance apart and securing in position; grounding the at leasttwo lightning protection systems; and installing a catenary wire betweenthe at least two lightning protection systems. In one or more of the atleast two lightning protection systems the base assembly may beattachable to the base mast section via a hinge assembly, wherein thehinge assembly may be configured to allow the base mast section to hingerelative to the base assembly.

Certain aspects of the presently disclosed subject matter having beenstated hereinabove, which are addressed in whole or in part by thepresently disclosed subject matter, other aspects will become evident asthe description proceeds when taken in connection with the accompanyingExamples and Drawings as best described herein below.

BRIEF DESCRIPTION OF THE DRAWINGS

Having thus described the presently disclosed subject matter in generalterms, reference will now be made to the accompanying Drawings, whichare not necessarily drawn to scale, and wherein:

FIG. 1 illustrates a modular lightning protection system when fullydeployed in an upright position in accordance with an embodiment of theinvention;

FIG. 2 illustrates an example of an air terminal of the modularlightning protection system;

FIG. 3 illustrates the modular lightning protection system in a foldedover configuration in accordance with an embodiment of the invention;

FIG. 4 illustrates an example of a cam lever fastener, several of whichare used for assembling/disassembling the modular lightning protectionsystem without the use of tools;

FIG. 5 through FIG. 9 illustrates an example of a base assembly and ahinge assembly of the modular lightning protection system;

FIG. 10 illustrates an example of a ground rod of the modular lightningprotection system;

FIG. 11 through FIG. 13 illustrates details of a corner portion of thebase assembly of the modular lightning protection system;

FIG. 14 illustrates an example of guy wires of the modular lightningprotection system prior to be deployed in an upright position;

FIG. 15 and FIG. 16 illustrate examples of installing the guy wires ofthe modular lightning protection system;

FIG. 17 and FIG. 18 illustrates an example of a wheeled caster of themodular lightning protection system;

FIG. 19 illustrates an example of a handcart to facilitate movement andplacement of the modular lightning protection system;

FIG. 20 and FIG. 21 illustrate examples of using the handcart to installthe wheeled caster with respect to the base assembly of the modularlightning protection system;

FIG. 22 and FIG. 23 illustrate examples of using the handcart to cradlea mast assembly of the modular lightning protection system;

FIG. 24 illustrates an example carry case of the disclosed modularlightning protection system;

FIG. 25 illustrates an example of the inside of the carry case of themodular lightning protection system;

FIG. 26 illustrates a graphical plot of a zone of protection of themodular lightning protection system based on height;

FIG. 27 illustrates a flow diagram of an example method of deploying themodular lightning protection system in accordance with an embodiment ofthe invention;

FIG. 28 illustrates a side view of a catenary lightning protectionsystem comprising at least two lightning protection systems connected bya catenary wire in accordance with an embodiment of the invention;

FIG. 29 illustrates another view of the catenary lightning protectionsystem comprising at least two lightning protection systems connected bya catenary wire;

FIG. 30 illustrates another view of the catenary lightning protectionsystem comprising at least two lightning protection systems connected bya catenary wire in accordance with another embodiment of the invention;

FIG. 31 illustrates another view of the catenary lightning protectionsystem comprising at least two lightning protection systems connected bya catenary wire in accordance with yet another embodiment of theinvention;

FIG. 32 illustrates a portion of the catenary lightning protectionsystem and catenary wire in accordance with an embodiment of theinvention;

FIG. 33A and FIG. 33B illustrate example schematic diagrams of thecatenary lightning protection system showing, an exemplary protectionzone thereof with and without the catenary wire, respectively inaccordance with an embodiment of the invention; and

FIG. 34 illustrates a method of deploying the catenary lightningprotection system in accordance with an embodiment of the invention.

DETAILED DESCRIPTION

The presently disclosed subject matter now will be described more fullyhereinafter with reference to the accompanying drawings, in which some,but not all embodiments of the presently disclosed subject matter areshown. Like numbers refer to like elements throughout. The presentlydisclosed subject matter may be embodied in many different forms andshould not be construed as limited to the embodiments set forth herein;rather, these embodiments are provided so that this disclosure willsatisfy applicable legal requirements. Indeed, many modifications andother embodiments of the presently disclosed subject matter set forthherein will come to mind to one skilled in the art to which thepresently disclosed subject matter pertains having the benefit of theteachings presented in the foregoing descriptions and the associateddrawings. Therefore, it is to be understood that the presently disclosedsubject matter is not to be limited to the specific embodimentsdisclosed and that modifications and other embodiments are intended tobe included within the scope of the appended claims.

In some embodiments, the presently disclosed subject matter provides amodular lightning protection system comprising a modular mobile platformand method of deploying same. In one embodiment the lightning protectionsystem is a modular, stand-alone, fully integrated, portable lightningprotection system, which may be in kit form for rapid assembly anddeployment, as well as for longer term applications for a wide spectrumof special protection needs. The lightning protection system ispreferably designed for quick installation as a reusable, modular mobileplatform for easy assembly and movement in the desired operational area.The lightning protection system may include a lightweight, ruggedaluminum alloy mast, a mobility-enabled base assembly, customerspecified grounding attachment components, and a UL-listed air terminal.The lightning mast components are preferably modular and short enough inlength for easy stowing, for example, in a hard carry case.

In some embodiments, the presently disclosed subject matter provides alightning protection system comprising at least two, preferablyportable, lightning protection systems connected by a catenary wire andmethod of deploying same. Namely, in such a lightning protection system,the two lightning protection systems connected by a catenary wire have acombined lightning protection zone that is larger than the combinedlightning protection zones of two lightning protection systems absentthe catenary wire. Accordingly, the presence of the catenary wireconnecting the two lightning protection masts serves to provide asubstantially continuous and expanded lightning protection zone ascompared with the two separate lightning protection zones of twolightning protection systems absent the catenary wire.

In some embodiments of the lightning protection system, the baseassembly may incorporate water-ballast “bricks” for ballast. A carrycase, such as a soft carry case, may be provided for storage andtransport of the (empty) water bricks. Alternatively, any suitableweighted device, such as sand bags, blocks, weights, and the like, maybe used in place of, or in conjunction with, the water bricks. Inaddition to general field use, the base assembly may be suitable fornon-penetrating application on hard surfaces, rooftops, and/or othercritical or non-penetrable surfaces.

The lightning protection system is preferably capable to withstand windgust loads equivalent to about 120 mph (193.1 kph), and potentiallygreater. Further, all system components are preferably corrosionresistant and suitable for indefinite deployment periods in sea coastand/or other challenging environments.

The function of the lightning protection system is to provide a highlyconductive, portable, and easily deployed structure to deter andterminate lighting strikes that may threaten assets and personnel underits cone of protection. The lightning protection system may furtherinclude air terminal static discharge technology to reduce theprobability of lightning strikes, and serves as an air terminal forlightning strike termination when required, for example as a UL Listedair terminal. Static discharge technology lowers the exposure to adirect lightning strike by controlling the conditions that triggerdirect strike (i.e., reduces the build-up of static ground charge andretards the formation of the ion “streamers” that complete the path fora lightning strike). The lightning protection system employs thepoint-discharge principle to continually leak off the lightning-causingground potential over a long period of time instead of the shortduration, powerful discharge occurring with a lightning strike.

An example of one specific use of lightning protection system is amilitary airfield where there are a number of multi-million dollaraircraft sitting on an open tarmac and out in the open and susceptibleto lightning strikes. However, the presently disclosed modular lightningprotection system can be used in any number of civilian and/or militaryapplications.

Referring now to FIG. 1 illustrates an example of a modular lightningprotection system 100 in accordance with an embodiment of the inventionin a fully deployed position. The modular lightning protection system100 includes a base assembly 110 that supports a base mast section 118.Base mast section 118 is the lower most mast section of mast assembly130. Mast assembly 130 is hingeably coupled to base assembly 110 at abottom of base mast section 118 via a hinge assembly 120. The mastassembly 130 includes a plurality of mast sections 132 that are coupledend-to-end. In one example, the mast sections 132 are coupled end-to-endvia threaded couplers (not shown). However, the mast sections 132 may becoupled together via any suitable mechanism and/or technique. Thecross-sectional diameter of the mast assembly 130 may vary from largerto smaller from bottom to top. Accordingly, there may be a certain orderof the mast sections 132. The base mast section 118 and the mastsections 132 of the mast assembly 130 may be formed, for example, oflightweight, rugged, aluminum alloy, or other suitable material.

Further, an air terminal 134 may be installed at the uppermost end ofthe mast assembly 130. For example and referring now to FIG. 2illustrates an example of air terminal 134. The air terminal 134preferably includes a conductive rod 133 and may further include a brush135 comprised of a plurality of fine conductive wires. In oneembodiment, air terminal 134 may be a brushless terminal. The conductiverod 133 can be inserted into an axial bore extending downwardly from thetop end of the uppermost mast section 132. However, the conductive rod133 may be coupled/connected to the uppermost mast section 132 via anysuitable mechanism and/or technique.

Additionally, the mast sections 132 of the mast assembly 130 (and/or theair terminal 134) may be alodined, anodized, painted, and/or coated withany other protective coating that presents no impediment to the voltageof a lightning flash. Alodining (chemical conversion) is a coatingmethod intended to provide corrosion prevention to aluminum productsleft unpainted, as well as to improve adhesion of painting processes.Anodizing is the electrochemical oxidation of an aluminum surfacedesigned to produce a stable film of the aluminum's oxide on thatsurface.

The total height of the modular lightning protection system 100 mayrange, for example, in a range from about 14 ft. to about 40 ft., or anyother suitable height range. Accordingly, each of the mast sections 132may be in the range of from about 4 ft. to about 8 ft. long, or anyother suitable length range. In one example, the total height of themodular lightning protection system 100 may be about 38 feet. For a38-foot modular lightning protection system 100, the base mast section118 may be about 3 feet long; the mast assembly 130 may include about 6mast sections 132, each being about 6.5 ft. long; and the air terminal134 may be about 1.5 ft. long. Further, in this example, the 38-footmodular lightning protection system 100 occupies a circular area that isabout 10.8 ft. (3.3 m) in diameter.

The mast assembly 130 may be supported, for example, by stay lines (orguy wires) 138. In one example, three stay lines 138 may be used tosupport mast assembly 130. In one example, one end of the stay lines 138may be connected to an upper region of the mast assembly 130, e.g.,about two-thirds of the way up the mast assembly 130, and the other endof the stay lines 138 may be connected to the base assembly 110.

A set of wheeled casters 140 may be provided to impart mobility to themodular lightning protection system 100. For example, wheeled casters140 may be provided, one for each corner of the base assembly 110. Usingthe wheeled casters 140, the modular lightning protection system 100 maybe more easily moved to a desired location and then the wheeled casters140 may be removed. Using the wheeled casters 140, the modular lightningprotection system 100 may be moved with the mast assembly 130 in eitherthe upright position or in the folded over position.

Further, the base assembly 110 may include a set of water-ballast“bricks” 150. The water-ballast “bricks” 150 provide weight to the baseassembly 110 of the modular lightning protection system 100. However,other mechanisms, such as sand bags, blocks, weights, and the like, maybe used to add weight to the base assembly 110 of the modular lightningprotection system 100. In one example, water-ballast “bricks” 150 mayhold about 3.3 gallons of water and have a weight of about 30 lbs.Accordingly, ground penetration is not necessarily required to set upthe modular lightning protection system 100. Therefore, the modularlightning protection system 100 may be used on most any ground surfaceand/or potentially on top of a building structure. However, in someembodiments, instead of using weights, such as water-ballast “bricks”150, ground spikes may be used to secure the base assembly 110 to theground.

The modular lightning protection system 100 further may include a carrycase 160 for holding and transporting the components of the modularlightning protection system 100 when disassembled. In one example, carrycase 160 is a hard case (see FIGS. 24 and 25). Additionally, the modularlightning protection system 100 may also include a carry case 152 (seeFIG. 24) for holding the water-ballast “bricks” 150, preferably in thereempty state. In one example, carry case 152 is a soft case.

Further, the modular lightning protection system 100 may also include amultifunctional handcart 170. For example, and referring now to FIGS. 22and 23, which shows the modular lightning protection system 100 whenfolded over, the handcart 170 may be used to cradle the mast assembly130 when in a folded over state. The hinge assembly 120 facilitates thefolded over state of the modular lightning protection system 100.Further, the handcart 170 may be used as a lift tool for installing thewheeled casters 140 beneath the base assembly 110 (see FIG. 21). Moredetails of the handcart 170 are described herein below with reference toFIG. 19.

Referring again to FIG. 3, the base assembly 110 is formed, for example,by outer horizontal members 112, wherein the ends of the three outerhorizontal members 112 may be connected one to the next to form a basestructure. In one example, base assembly 110 is formed by three or moreouter horizontal members 112, wherein the ends of the outer horizontalmembers 112 may be connected one to the next to form a triangular basestructure. The base assembly 110 may further include inner horizontalmembers 114, e.g., three inner horizontal members 114. Namely, one endof each of the inner horizontal members 114 connects to one corner ofthe base structure and the other end of each of the inner horizontalmembers 114 connects to hinge assembly 120, which is at the center ofthe base structure. The base mast section 118 may also include radiallyprojecting fins 119, for example, three radially projecting fins 119,for added structural integrity. A set of angled members 116, e.g., threeangled members 116, connect the corners of the base structure (i.e.,formed by the outer horizontal members 112), for example, to an upperportion of the fins 119. The outer horizontal members 112, the innerhorizontal members 114, and the angled members 116 can be, for example,aluminum or aluminum alloy angle members, or any other suitablematerial.

All fasteners and installation hardware of the modular lightningprotection system 100 may preferably be, for example, captive for fastinstallation and to avoid loose parts that could cause foreign objectcontamination and/or damage at sensitive sites. Preferably no tools arerequired for installation. For example, some of the base members thathave hinge points may have double nut bolts and wave washers that do notrequire any attention by the operator during assembly. However, anyother suitable mechanism may be used. Some or all of the mechanicalattachment points may be accomplished, for example, by slots in oneattaching piece and a captive cam lever fastener in the other piece.However, any other suitable quick connect/disconnect mechanism may beused. For example, FIG. 4 shows an example of a cam lever fastener 144engaged with a slot 145. The modular lightning protection system 100preferably includes several cam lever fasteners 144 and correspondingslots 145 so that the various components can be connected/disconnected,and thereby assembling/disassembling modular lightning protection system100 with minimal, or preferably with no tools.

FIG. 5 through FIG. 9 illustrate more details of the base assembly 110and the hinge assembly 120 of the modular lightning protection system100 and showing several cam lever fasteners 144. In particular, FIG. 5,FIG. 6, and FIG. 7 show modular lightning protection system 100 in thedeployed state wherein the hinge assembly 120 is closed and locked, forexample by pins 121 (see FIG. 5). The pins 121 may, in one example, havedetents released by a push button. However, any other suitable quickconnect/disconnect type mechanism may be used.

FIG. 8 shows the modular lightning protection system 100 in the foldedover state wherein the hinge assembly 120 may be opened, for example, byremoving one of the pins 121. FIG. 8 shows that the hinge assembly 120may include a pair of hingeably connected plates with a hinge mechanismon two opposing sides. In one embodiment, one plate (e.g., the bottomplate) may be attached to the inner most ends of inner horizontalmembers 114 at a center portion of the base assembly 110. The otherplate (e.g., the top plate) may be bolted, welded, or otherwiseattached, to the base of the base mast section 118 and fins 119. Whenmated together, a hinge mechanism is provided on both sides of theplates, wherein each hinge mechanism may have a removable pin 121, thusallowing the mast assembly 130 to be folded in one of two directions.Referring to FIG. 9, in one embodiment, inner horizontal members 114 arepreferably removably attached to the bottom plate of hinge assembly 120,by insertion of the inner most ends of inner horizontal members 114 intocorresponding sleeves 122 and secured in place with preferably a quickconnect/disconnect type mechanism, such as a pin 123, or any othersuitable quick connect/disconnect type mechanism. The shape and size ofthe pair of hingeably connected plates of hinge assembly 120 provides,in addition to added structural integrity and stability, optimalelectrical conducting properties. Cam lever fasteners 144, furtheroperate to ensure a tight connection between the plates when the mastassembly 130 is in its upright position. Mast assembly 130 may, in oneexample, be detached from the hinge by removing both of pins 121, andremoved from the base assembly 110 without the need to disassemble theentire base assembly 110.

Further, FIG. 5 and FIG. 8 show a coupler 146, for example, at the baseof the base mast section 118. The coupler 146 is designed to receive,for example, a ground cable 148. The coupler 146 provides a mechanicaland electrical connection of the ground cable 148 to the mast assembly130. FIG. 10 shows the other end of the ground cable 148 connected to aground rod 182 that may be driven into the ground. Ground cable 148 maybe made of braided copper, for example 2/0-4/0, or other suitablematerial and gauge. The modular lightning protection system 100 caninclude one or multiple couplers 146, ground cables 148, and/or groundrods 182. However, in other embodiments, the modular lightningprotection system 100 may be connected to an existing ground system,such as an existing ground system of an airfield.

Referring now to FIG. 11, FIG. 12, and FIG. 13 show more details of acorner portion of the base assembly 110 of the modular lightningprotection system 100. Namely, one cam lever fastener 144, or othersuitable device, may be used to couple together the ends of two outerhorizontal members 112 and one inner horizontal member 114 as shown.FIG. 10, FIG. 11, and FIG. 12 also show that the base assembly 110 mayoptionally include a pair of rods or tubing 154 at each corner thereof.Each pair of rods or tubing 154 may be provided to engage withcorresponding sleeves or grooves formed in water-ballast “brick” 150,thereby holding the water-ballast “brick” 150 in place atop therespective corner of the base assembly 110.

Referring now to FIG. 14, illustrates stay lines 138 of the modularlightning protection system 100 prior to deploying. The stay lines 138may attach to a collar 136 at an upper portion of the mast assembly 130,e.g., about two-thirds up the mast assembly 130. In one example, staylines 138 may be stainless steel vinyl coated ⅛″ diameter wire, or anyother suitable material/size. FIG. 15 and FIG. 16 show more details ofinstalling the stay lines 138 of the modular lightning protection system100. In one example, the stay lines 138 may pre-set at a fixed lengthmaking the attachment and tensioning of the stay lines 138 quick andeasy. In one example, there are three stay lines 138, one of eachattaching to collar 136 at one end and to a corner of base assembly 110at its other end. One or more of the stay lines 138 may have atensioning mechanism, such as a cam-over binder (e.g., a cam-over binder156), that allows for easy tensioning of the stay lines 138. The staylines 138 may also include turnbuckles 157 that may be adjusted and/orset prior to assembly if the tension of one or more of the stay lines138 needs to be adjusted.

Referring now to FIG. 17 and FIG. 18, illustrates an example of awheeled caster 140. Further, FIG. 19 shows a side view and front view ofan example of the handcart 170. The handcart 170 may include a main bar172, a handle 174 at a top end of the main bar 172, a set of wheels 176at a bottom end of the main bar 172, a lift bar 178 also at the bottomend of the main bar 172, and a cradle bar 180 at an upper portion of themain bar 172. Handcart 170 is preferably multifunctional and may beused, for example, as a lift tool for installing the wheeled casters 140beneath the base assembly 110 as shown, for example, in FIG. 20 and FIG.21; to facilitate moving the modular lightning protection system 100,while in its deployed state, to a desired location; and to cradle themast assembly 130 in the folded over position, as shown, for example, inFIG. 3, FIG. 22, and FIG. 23.

Referring now to FIG. 24, illustrates the carry cases of the modularlightning protection system 100. The carry case 160, in one example, maybe a roll-away hard sided case that is used for stowing the componentsof the modular lightning protection system 100 when disassembled. FIG.25 shows an example of the inside of the carry case 160. In one example,the dimensions of the carry case 160 are about 85.5 inches (about 2172mm) long by about 20 inches (about 508 mm) wide by about 18 inches(about 458 mm) high and with a weight of about 270 pounds (about 123 kg)when loaded.

Referring again to FIG. 24, the carry case 152, in one example, may be asoft sided case for holding the water-ballast “bricks” 150, preferablywhen empty. In one example, the dimensions of the soft carry case 152may be about 38 inches (about 965 mm) long by about 18 inches (about 458mm) wide by about 18 inches (about 458 mm) high and with a weight ofabout 25 pounds (about 11.4 kg) when holding three empty water-ballast“bricks” 150.

Referring now to FIG. 26 is an example of a plot 2500 of a zone ofprotection of the modular lightning protection system 100 when fullydeployed. The modular lightning protection system 100 protects a conicalzone around it that is calculated by the “rolling ball method.” Thismethod is described in National Electrical Code (NEC), or NFPA70published by the National Fire Protection Association (NFPA) (thecontents of which are incorporated herein by reference), as well as theprotection radii required for different types of assets. Briefly stated,assets are considered protected when they do not project into thesurface of an imaginary sphere of suitable radius when it contacts boththe top of the modular lightning protection system 100 and ground. Afrequently used sphere has a radius of about 150 feet (about 45.7 m).The plot 2500 indicates an example conical zone of protection for themodular lightning protection system 100 having a height of about 38 ft.

FIG. 27 illustrates a flow diagram of an example of a method 2600 ofdeploying the modular lightning protection system 100. By deploying themodular lightning protection system 100 according to the method 2600,lighting strikes that may threaten assets and personnel under its coneof protection can be deterred and terminated. The method 2600 mayinclude, but is not limited to, the following steps. Further, the method2600 is not limited to the order of the following steps.

At a step 2610, the modular lightning protection system 100 is provided.For example, the modular lightning protection system 100 is provided inits disassembled state within the carry case 160. Additionally, and ifneeded, a set of empty water-ballast “bricks” 150 may be provided withinthe carry case 152.

At a step 2612, the components of the modular lightning protectionsystem 100 are removed from the carry case 160.

At a step 2614, the base assembly 110 is assembled (preferably withoutrequiring the use of tools). For example, assembly of the base mastsection 118, the outer horizontal members 112, the inner horizontalmembers 114, and the angled members 116 do not require the use of anytools. In one example, mechanical attachment points may be accomplishedby slots in one attaching piece and a captive cam lever fastener 144 inthe other piece, and/or through the use of pins, carabineer clips,and/or other similar type of quick connect/disconnect devices.

At a step 2616, the mast assembly 130 is assembled (preferably withoutrequiring the use of tools). For example, the mast sections 132 of themast assembly 130 are coupled end-to-end via, for example, threadedcouplers. Further, the air terminal 134 is installed in the end of theuppermost mast section 132.

At a step 2618, the mast assembly 130 is hingeably coupled to the baseassembly 110 with the mast assembly 130 in the folded over position, asshown for example in FIG. 2 and FIG. 8. In the folded over position, inone example, one of the pins 121 is installed and the other pin 121 isnot installed.

At a step 2620, as needed, the modular lightning protection system 100may be positioned to a desired position. In one example, using thehandcart 170, wheeled casters 140 may be installed beneath each cornerof the base assembly 110, as shown for example in FIG. 18, FIG. 20, andFIG. 21. Handcart 170 may then be used to help move the modularlightning protection system 100. Once at the desired position, thewheeled casters 140 may be removed from beneath the corners of the baseassembly 110 using the handcart 170 if needed. The modular lightningprotection system 100 may be positioned while still in the folded overposition, or alternatively while the mast assembly 130 is in its uprightposition.

At a step 2622, the modular lightning protection system 100 is grounded.In one example, one or more ground rods 182 may be driven into theground. Then the one or more ground rods 182 are electrically connectedto one or more couplers 146 of the modular lightning protection system100 via one or more ground cables 148. In another example, the modularlightning protection system 100 can be connected to an existing groundsystem, such as the existing ground system of an airfield.

At a step 2624, the modular lightning protection system 100 is securedat the site. In one example, water-ballast “bricks” 150 may bepositioned atop each corner of base assembly 110 as shown, for example,in FIG. 3 and FIG. 21. Water bricks 150 may be optionally held in placeatop their respective corners of base assembly 110 by rods or tubing154. Each corner of base assembly 110 may include one or more (e.g.,3-4), water bricks 150 placed thereon. Water bricks 150 may be filledprior to placement atop their respective corners of base assembly 110,or alternatively they may be filled after placement. In another example,instead of using water bricks 150, other weighted item(s) may be used,such as sand bags, blocks, weights, and the like. In another example,instead of using weights, ground spikes may be used to secure the baseassembly 110 to the ground.

At a step 2626, using the hinge assembly 120 and the pins 121, the mastassembly 130 is placed and locked in the upright position, as shown forexample in FIG. 1, FIG. 5, FIG. 6, and FIG. 7. Additionally, the staylines 138 are attached and tensioned, as shown for example in FIG. 1,FIG. 15, and FIG. 16.

In summary and referring again to FIG. 1 through FIG. 27, the presentlydisclosed modular lightning protection system 100 comprises a modularmobile platform. The modular lightning protection system 100 may be astand-alone, fully integrated, lightning protection system in, forexample, kit form for rapid assembly and deployment as well as forlonger term applications for a wide spectrum of special protectionneeds. The modular lightning protection system 100 is designed for quickinstallation as a reusable, modular mobile platform for easy assemblyand movement in the desired operational area. The modular lightningprotection system 100 preferably includes a lightweight, rugged aluminumalloy mast assembly 130, a mobility-enabled base assembly 110,customer-specified grounding attachment components (e.g., ground cables148 and ground rods 182), and an air terminal 134. The mast sections 132of the mast assembly 130 are modular and preferably of a length tofacilitate easy stowing in a carry case (e.g., carry case 160). Themodular lightning protection system 100, may be provided as a kit,wherein all the components may be stored and/or transported in carrycase 160, and water-ballast “bricks” 150 may be stored and/ortransported in case 152.

Further, in the modular lightning protection system 100, the baseassembly 110 may include water-ballast “bricks” 150 for ballast. A carrycase 152 may also be provided for transport of the water bricks. Inaddition to general field use, the base assembly 110 may be suitable fornon-penetrating application, such as, rooftops, non-penetrable surfaces,and other critical surfaces.

The modular lightning protection system 100 is preferably capable ofwithstanding wind loads equivalent to about 120 mph (about 193 kph).Further, all components of the modular lightning protection system 100are preferably corrosion resistant and suitable for indefinitedeployment periods in sea coast or other challenging environments.

The function of the modular lightning protection system 100 is toprovide a highly conductive, easily deployed structure to deter andterminate lighting strikes that may threaten assets and personnel underits cone of protection. The modular lightning protection system 100 mayinclude streamer discharge dissipation technology to reduce theprobability of lightning strikes, and serves as an air terminal forlightning strike termination when required. An example of one specificuse of the modular lightning protection system 100 is a militaryairfield where there are a number of multi-million dollar aircraftsitting on an open tarmac and out in the open and susceptible tolightning strikes. However, the presently disclosed modular lightningprotection system 100 can be used in any number of civilian or militaryapplications.

In another embodiment, the invention provides a catenary lightningprotection system including at least two lightning protection systemsconnected by a catenary wire and method of deploying same. In thisembodiment, the lightning protection systems are connected by a catenarywire and have a combined lightning protection zone that is larger thanthe combined lightning protection zones of two lightning protectionsystems absent the catenary wire. Accordingly, the presence of thecatenary wire connecting the two lightning protection masts serves toprovide a substantially continuous and expanded lightning protectionzone as compared with the two separate lightning protection zones of twolightning protection systems absent the catenary wire.

Referring now to FIG. 28 is a side view of a catenary lightningprotection system 1000 comprising at least two lightning protectionsystems 1100A, 1100B connected by a catenary wire 1300. Catenary wire1300 may be a aluminum conductor steel-reinforced (ACSR) cable, or othersuitable cable, and may be about ¼″ diameter in size. Further, FIGS.29-31 show additional embodiments of the catenary lightning protectionsystem 1000. Catenary lightning protection system 1000 includes at leasttwo lightning protection systems, such as lightning protection systems1100A, 1100B. Each of the lightning protection systems 1100A, 1100Bincludes, for example, a base assembly 1120 that supports a mast 1140.An air terminal 1160, e.g., UL-listed air terminal, is atop the mast1140. In one example, the lightning protection systems 1100A, 1100B aredesigned for quick assembly and installation as well as easy movementwithin the desired operational area. The mast 1140 of the lightningprotection systems 1100A, 1100B can be, for example, a lightweight,rugged aluminum alloy mast that is grounded via customer-specifiedgrounding attachment components (not shown). The height of the lightningprotection systems 1100A, 1100B can range, for example, from about 10feet to about 40 feet, or other suitable height.

Additionally, the mast 1140 (and/or the air terminal 1160) may bealodined, anodized, painted, and/or coated with any other protectivecoating that presents no impediment to the voltage of a lightning flash.Alodining (chemical conversion) is a coating method intended to providecorrosion prevention to aluminum products left unpainted, as well as toimprove adhesion of painting processes. Anodizing is the electrochemicaloxidation of an aluminum surface designed to produce a stable film ofthe aluminum's oxide on that surface.

In one embodiment, the lightning protection systems 1100A, 1100B includethe lightning protection system described in U.S. Pat. No. 9,083,172,entitled “Portable lightning protection system,” issued on Jul. 14,2015; the entire disclosure of which is incorporated herein by reference(as shown, for example, in FIGS. 28 and 29). That is, in thisembodiment, lightning protection systems 1100A and 1100B may be the sameas lightning protection system of the '172 patent, wherein at least twoof the lightning protection systems of the '172 patent are connected bycatenary wire 1300 to create the catenary lightning protection system1000. The '172 patent describes a lightning protection system forplacement adjacent structures requiring lightning protection. Thelightning protection system of the '172 patent, in one embodiment, mayinclude a multi-section conductive mast including a base mast section,and a top mast section; an air terminal attachable to the top mastsection; a base attachable to the base mast section; and at least onegrounding cable to ground the mast, wherein the base includes aplurality of radially extending horizontal beams having inner endsattachable to the base mast section and a plurality of inclined beamshaving inner ends attachable to the base mast section and outer endsattachable to the horizontal beams. The lightning protection system ofthe '172 patent, in another embodiment, may include a base mast sectionwith an upper end and a plurality of radially extending, axially alignedribs; a top mast section; preferably at least one intermediate mastsection attachable to the upper end of the base mast section and to thelower end of the top mast section, the mast sections being axiallyaligned when attached; an air terminal having a conductive rodinsertable into the bore of the top mast section; a base including aplurality of radially extending horizontal beams having inner endsattachable to the base mast section ribs and a plurality of inclinedbeams having inner ends attachable to the base mast section ribs andouter ends attachable to the horizontal beams; and grounding cablesconnecting the mast to the ground. The lightning protection system ofthe '172 patent, in yet another embodiment, may include a base mastsection, which includes a plurality of radially projecting fins; one ormore intermediate mast sections; and a top mast section. Theintermediate mast sections may include threaded coupling near theirlower ends to be screwed onto the tops of sections which attach to them.The lightning protection system of the '172 patent may also include anair terminal, wherein the air terminal may include a conductive rod thatis inserted into a bore in the upper end of the upper mast section, andmay also include a brush which may include a plurality of fineconductive wires. The lightning protection system of the '172 patent mayalso include ground wires that connect the system base to one or moreground rods. A carry bag may also be provided for convenient storage andtransport of the components.

In another embodiment, the lightning protection systems 1100A, 1100Binclude the modular lightning protection system 100 described above,that is, lightning protection systems 1100A and 1100B may be the same asmodular lightning protection system 100, wherein at least two of modularlightning protection systems 100 are connected by catenary wire 1300 tocreate the catenary lightning protection system 1000 (as shown, forexample, in FIG. 30). The modular lightning protection system 100includes a mobile platform. The modular lightning protection system 100includes a modular base assembly and a mast assembly, wherein the mastassembly, when installed on the base assembly, can be in a folded overposition or in an upright position. The modular lightning protectionsystem 100 may further include wheeled casters for imparting mobility tothe modular lightning protection system 100 as well as water-ballast“bricks” for weighting down the modular lightning protection system 100.In such an example, at least two of the modular lighting protectionsystems 100 are connected by catenary wire 1300.

In yet another embodiment, the lightning protection systems 1100A, 1100Bmay include a combination of the modular lightning protection system 100and the lightning protection system of the '172 patent, that is,lightning protection systems 1100A and 1100B may include one of each ofthe modular lightning protection system 100 and the lightning protectionsystem of the '172 patent, wherein the two are connected by the catenarywire 1300 to create the catenary lightning protection system 1000 (asshown, for example, in FIG. 31).

In the catenary lightning protection system 1000, the lightningprotection systems 1100A and 1100B are electrically connected via acatenary wire 1300. At each of the lightning protection systems 1100A,1100B, the catenary wire 1300 may ride on a pulley 1320 that is attachedto an upper portion of the mast 1140. Each end of the catenary wire 1300may be anchored to the ground (or surface) via, for example, groundspikes or stakes 1340. In particular, the catenary wire 1300 is pulledtight and then anchored to the ground (or surface).

Referring now to FIG. 32, illustrates an upper portion of the catenarylightning protection system 1000 and showing more details of thecatenary wire 1300. FIG. 32 shows that the catenary lightning protectionsystem 1000 preferably also includes a cable 1360 at each of thelightning protection systems 1100A, 1100B. Cable 1360 may be a aluminumconductor steel-reinforced (ACSR) cable, or other suitablecable/material, and may be about ¼″ diameter in size. In one embodiment,at each of the lightning protection systems 1100A, 1100B, one end of thecable 1360 connects to the catenary wire 1300, for example near thepulley 1320, via a suitable clamp or other device and/or technique toprovide a good electrical connection. The other end of the cable 1360preferably connects to the mast 1140 a certain distance below the pulley1320, for example, about 4 ft. below pulley 1320. The cable 1360connects to the mast 1140 preferably via a clamp 1380, or other suitablemechanism. The purpose of the cable 1360 is to ensure a good electricalconnection between the catenary wire 1300 that is riding on the pulley1320 and the mast 1140.

Referring now to FIG. 33A, is schematic diagram of the catenarylightning protection system 1000 showing, an exemplary protection zonethereof. With the catenary wire 1300 present, the catenary lightningprotection system 1000 provides a substantially continuous lightningprotection zone 4000 between the two lightning protection systems 1100A,1100B. By contrast, FIG. 33B is schematic diagram of the lightningprotection systems 1100A, 1100B absent the catenary wire 1300 connectingthem. Without the catenary wire 1300, the lightning protection system1100A has a certain lightning protection zone 4000A and the lightningprotection system 1100B has a certain lightning protection zone 4000B.In this example, the lightning protection zones 4000A, 4000B do notoverlap. Accordingly, FIG. 33A illustrates the benefit of the catenarywire 1300, which is to expand the combined lightning protection zone4000 between the two lightning protection systems 1100A, 1100B, ascompared with the two separate lightning protection zones 4000A, 4000Bshown in FIG. 33B. Additional pairs of lightning protection systems like1100A, 1100B connected by catenary wire 1300 may be positioned inproximity to lightning protection systems 1100A, 1100B (e.g., parallelwith) to expand the lightning protection zone 4000.

Referring now to FIG. 34, is a flow diagram of an example of a method5000 of deploying the catenary lightning protection system 1000. Bydeploying the catenary lightning protection system 1000 according to themethod 5000, lighting strikes that may threaten assets and personnelunder its zone of protection can be deterred and terminated. The method5000 may include, but is not limited to, the following steps. Further,the method 5000 is not limited to the order of the following steps.

At a step 5100, at least two lightning protection systems 1100, e.g.,1100A, 1100B are provided. In one example, lightning protection systems1100A, 1100B include two lightning protection systems 100 as describedabove with reference to FIGS. 1-27. In another example, the twolightning protection systems 1100A, 1100B include the lightningprotection system according to the '172 patent. In yet another example,lightning protection systems 1100A, 1100B include one lightningprotection system 100 and one lightning mast protection system accordingto the '172 patent.

At a step 5120, the lightning protection systems 1100A, 1100B are setup.The lightning protection systems 1100A, 1100B are set up a certaindistance apart at the location to be protected. For example, if thelightning protection systems 1100A, 1100B are about 38 feet in height,then they are set up about 80 feet apart, to provide an optimumlightning protection zone.

At a step 5140, the catenary wire 1300 is installed between the twolightning protection systems 1100A, 1100B. For example, the pulley 1320and the cable 1360 are installed on the mast 1140 of the lightningprotection system 1100A. Then, the pulley 1320 and the cable 1360 areinstalled at the top of the mast 1140 of the lightning protection system1100B. Then, the catenary wire 1300 is installed upon the respectivepulleys 1320 of the two masts 1140. Further, the two respective cables1360 are each connected to the catenary wire 1300 and their respectivemasts 1140 via a suitable clamp or other device and/or technique toprovide good electrical connections thereto. Then, the catenary wire1300 is pulled tight and anchored to the ground (or surface) via, forexample, the ground spikes or stakes 1340. For example, the catenarywire 1300 is pulled to about 20 lbs. of tension and anchored to theground (or surface).

In summary and referring again to FIG. 28 through FIG. 34, in thecatenary lightning protection system 1000, the two lightning protectionsystems 1100A, 1100B that are connected by the catenary wire 1300 have acombined lightning protection zone that is larger than the combinedlightning protection zones of two lightning protection systems absentthe catenary wire 1300. Accordingly, the presence of the catenary wire1300 connecting the two lightning protection systems 1100A, 1100B servesto provide a substantially continuous and expanded lightning protectionzone as compared with the two separate lightning protection zones of twolightning protection systems 1100A, 1100B absent the catenary wire 1300.

Further, at the site to be protected, the catenary lightning protectionsystem 1000 can include multiple pairs of lightning protection systems1100A, 1100B connected via catenary wire 1300.

The function of the catenary lightning protection system 1000, similarto that of the lightning protection system 100, is to provide a highlyconductive, easily deployed lightning protection system to deter andterminate lighting strikes that may threaten assets and personnel underits zone of protection. A non-limiting example of one specific use ofthe catenary lightning protection system 1000 is protecting a militarymetal building(s) used for fuel storage which may be out in the open andsusceptible to lightning strikes. However, the catenary lightningprotection system 1000 can be used in any number of civilian and/ormilitary applications.

Following long-standing patent law convention, the terms “a,” “an,” and“the” refer to “one or more” when used in this application, includingthe claims. Thus, for example, reference to “a subject” includes aplurality of subjects, unless the context clearly is to the contrary(e.g., a plurality of subjects), and so forth.

Throughout this specification and the claims, the terms “comprise,”“comprises,” and “comprising” are used in a non-exclusive sense, exceptwhere the context requires otherwise. Likewise, the term “include” andits grammatical variants are intended to be non-limiting, such thatrecitation of items in a list is not to the exclusion of other likeitems that can be substituted or added to the listed items.

For the purposes of this specification and appended claims, unlessotherwise indicated, all numbers expressing amounts, sizes, dimensions,proportions, shapes, formulations, parameters, percentages, quantities,characteristics, and other numerical values used in the specificationand claims, are to be understood as being modified in all instances bythe term “about” even though the term “about” may not expressly appearwith the value, amount or range. Accordingly, unless indicated to thecontrary, the numerical parameters set forth in the followingspecification and attached claims are not and need not be exact, but maybe approximate and/or larger or smaller as desired, reflectingtolerances, conversion factors, rounding off, measurement error and thelike, and other factors known to those of skill in the art depending onthe desired properties sought to be obtained by the presently disclosedsubject matter. For example, the term “about,” when referring to a valuecan be meant to encompass variations of, in some embodiments, ±100% insome embodiments ±50%, in some embodiments ±20%, in some embodiments±10%, in some embodiments ±5%, in some embodiments ±1%, in someembodiments ±0.5%, and in some embodiments ±0.1% from the specifiedamount, as such variations are appropriate to perform the disclosedmethods or employ the disclosed compositions.

Further, the term “about” when used in connection with one or morenumbers or numerical ranges, should be understood to refer to all suchnumbers, including all numbers in a range and modifies that range byextending the boundaries above and below the numerical values set forth.The recitation of numerical ranges by endpoints includes all numbers,e.g., whole integers, including fractions thereof, subsumed within thatrange (for example, the recitation of 1 to 5 includes 1, 2, 3, 4, and 5,as well as fractions thereof, e.g., 1.5, 2.25, 3.75, 4.1, and the like)and any range within that range.

Although the foregoing subject matter has been described in some detailby way of illustration and example for purposes of clarity ofunderstanding, it will be understood by those skilled in the art thatcertain changes and modifications can be practiced within the scope ofthe appended claims.

That which is claimed:
 1. A lightning protection system, comprising: a.a multi-section conductive mast assembly comprising at least a base mastsection and a top mast section; b. an air terminal attachable to the topmast section; and c. a base assembly attachable to the base mast sectionvia a hinge assembly, wherein the hinge assembly is configured to allowthe base mast section to hinge relative to the base assembly.
 2. Thesystem of claim 1 wherein the base assembly comprises a plurality ofradially extending inner horizontal beams having inner ends attachableto the hinge assembly and a plurality of inclined beams having innerends attachable to the base mast section and outer ends attachable tothe radially extending horizontal beams.
 3. The system of claim 2wherein the base assembly further comprises a plurality of outerhorizontal beams attachable between outer ends of the radially extendinginner horizontal beams.
 4. The system of claim 1 further comprising atleast one grounding cable to ground the multi-section conductive mastassembly.
 5. The system of claim 4 further comprising at least oneground rod to ground the at least one grounding cable to earth.
 6. Thesystem of claim 1 wherein the hinge assembly comprises a top horizontalplate and a bottom horizontal plate hingedly connected on at least oneside thereof.
 7. The system of claim 6 wherein the top horizontal plateand bottom horizontal plate are hingedly connected on two opposing sidesthereof.
 8. The system of claim 2 wherein the base mast sectioncomprises a plurality of radially extending, axially aligned ribs. 9.The system of claim 8 wherein the inner ends of the plurality ofinclined beams are attachable to the base mast section ribs.
 10. Thesystem of claim 8 wherein a top horizontal plate of the hinge assemblycomprises an upper surface and attachment plates extending upward fromthe top horizontal plate upper surface for attachment to the base mastsection ribs.
 11. The system of claim 1 further including at least oneintermediate mast section disposed between the base mast section and thetop mast section.
 12. The system of claim 6 wherein the top horizontalplate and bottom horizontal plate are secured together in a non-hingedstate via one or more cam lever fasteners, wherein one of the tophorizontal plate and bottom horizontal plate comprises one or morecaptive cam lever fastener and the other of the top horizontal plate andbottom horizontal plate comprises one or more corresponding slots forthe one or more captive cam lever fasteners to engage.
 13. The system ofclaim 1 wherein sections of the multi-section conductive mast are joinedby a threaded coupling.
 14. The system of claim 3 wherein the inner endsof the plurality of radially extending inner horizontal beams areattachable to the hinge assembly via insertion into correspondingsleeves thereon and are secured in place via a quick connect/disconnectmechanism, and wherein the inner ends of the plurality of inclined beamsare attachable to the base mast section and the outer horizontal beamsare attachable to outer ends of the radially extending inner horizontalbeams, via quick connect/disconnect mechanisms.
 15. The system of claim14 wherein the quick connect/disconnect mechanism for securing the innerends of the plurality of radially extending horizontal beams within thecorresponding sleeves of the hinge assembly comprises a removable pin,and wherein the quick connect/disconnect mechanisms for attaching theinner ends of the plurality of inclined beams to the base mast sectionand for attaching the outer horizontal beams to outer ends of theradially extending inner horizontal beams comprises cam lever fasteners.16. A method of deploying a lightning protection system, the methodcomprising: a. providing a lightning protections system, comprising: i.a multi-section conductive mast assembly comprising at least a base mastsection and a top mast section; ii. an air terminal attachable to thetop mast section; and iii. a base assembly attachable to the base mastsection via a hinge assembly, wherein the hinge assembly is configuredto allow the base mast section to hinge relative to the base assembly;b. assembling the base assembly; c. assembling the multi-sectionconductive mast assembly; d. connecting the base mast section to thebase assembly via the hinge assembly; e. positioning the base assemblyto a desired location and securing in position; f. grounding thelightning protection system; and g. placing and securing themulti-section conductive mast assembly in an upright position using thehinge assembly.
 17. A catenary lightning protection system, comprising:a. at least two lightning protection systems, each lightning protectionsystem comprising: i. a multi-section conductive mast assemblycomprising at least a base mast section and a top mast section; ii. anair terminal attachable to the top mast section; and iii. a baseassembly attachable to the base mast section; and b. a catenary wireconnected between the at least two lightning protection systems.
 18. Thesystem of claim 17, wherein in one or more of the at least two lightningprotection systems the base assembly is attachable to the base mastsection via a hinge assembly, wherein the hinge assembly is configuredto allow the base mast section to hinge relative to the base assembly.19. A method of deploying a catenary lightning protection system, themethod comprising: a. providing at least two lightning protectionsystems, each lightning protection system comprising: i. a multi-sectionconductive mast assembly comprising at least a base mast section and atop mast section; ii. an air terminal attachable to the top mastsection; iii. a base assembly attachable to the base mast section; andiv. a catenary wire connected between the at least two lightningprotection systems; b. assembling the at least two lightning protectionsystems; c. positioning the at least two lightning protection systems acertain distance apart and securing in position; d. grounding the atleast two lightning protection systems; and e. installing a catenarywire between the at least two lightning protection systems.
 20. Themethod of claim 19, wherein in one or more of the at least two lightningprotection systems the base assembly is attachable to the base mastsection via a hinge assembly, wherein the hinge assembly is configuredto allow the base mast section to hinge relative to the base assembly.